Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 260930

Area Forecast Discussion
National Weather Service Boise ID
330 AM MDT Mon Jun 26 2017

.SHORT TERM...Today through Tuesday...The thermal trough will set
up near the ID/OR border for hot afternoon temps, especially in
the Treasure Valley where highs will be in the upper 90s to around
100F. Meanwhile, moisture ahead of an upper trough near the PacNW
coast combined with the afternoon heat will initiate showers and
thunderstorms. The main concern with the thunderstorms will be
the potential for strong wind gusts and gusty outflows, including
the Treasure/Western Magic Valleys late this afternoon and
evening. The upper trough will move through the area tonight,
along with a cold front, leading to cooler temperatures and
mostly dry weather on Tuesday. The only area that has enough
moisture for showers/thunderstorms will be in the West Central
Mountains mainly east of McCall.

.LONG TERM...Tuesday night through Sunday...Upper level trough
remains over the region through Wednesday keeping a threat of
showers and thunderstorms for the Central Idaho Mountains. The
upper level trough moves to the east on Thursday bring cool
northwesterly flow to the region. An upper level ridge begins to
build back over the Pacific Northwest Thursday night and into
Friday which will warm temperatures a few degrees above normal.
Models in good agreement with another upper level trough moving
through the region on Saturday bring a slight chance of showers to
our northern zones. The region remain under the trough through
Monday for near normal temperatures.


.AVIATION...VFR. Expect scattered thunderstorms to develop across
southeast Oregon this afternoon, with isolated thunderstorms over
the higher terrain of central and southwest Idaho. The stronger
storms will produce gusty winds. Outflow winds are also possible
this evening across Harney County from thunderstorms over
southwest Oregon and northeast California. Otherwise surface winds
will be mainly west to northwest 10-15 kts. Winds aloft at 10k ft
msl will be south 10-20 kts.





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